For diff-family, Git supports 2 different options for 2 different purposes, `--full-index' for showing diff-patch object's name in full, and `--abbrev' to customize the length of object names in diff-raw and diff-tree header lines, without any options to customise the length of object names in diff-patch format. When working with diff-patch format, we only have two options, either full index, or default abbrev length. Although, that consistent is documented, it doesn't stop users from trying to use `--abbrev' with the hope of customising diff-patch's objects' name's abbreviation. Let's resolve that inconsistency. Đoàn Trần Công Danh (2): revision: differentiate if --no-abbrev asked explicitly diff: index-line: respect --abbrev in object's name Documentation/diff-options.txt | 9 +++--- diff.c | 5 +++- revision.c | 2 +- t/t4013-diff-various.sh | 3 ++ ...ff.diff-tree_--root_-p_--abbrev=10_initial | 29 +++++++++++++++++++ ...--root_-p_--full-index_--abbrev=10_initial | 29 +++++++++++++++++++ ...f.diff-tree_--root_-p_--full-index_initial | 29 +++++++++++++++++++ 7 files changed, 100 insertions(+), 6 deletions(-) create mode 100644 t/t4013/diff.diff-tree_--root_-p_--abbrev=10_initial create mode 100644 t/t4013/diff.diff-tree_--root_-p_--full-index_--abbrev=10_initial create mode 100644 t/t4013/diff.diff-tree_--root_-p_--full-index_initial Range-diff against v1: 1: 9daef7445c = 1: 9daef7445c revision: differentiate if --no-abbrev asked explicitly 2: 9146313893 ! 2: 12acf1fe5d diff: extend --abbrev support to diff-patch format @@ Metadata Author: Đoàn Trần Công Danh <congdanhqx@xxxxxxxxx> ## Commit message ## - diff: extend --abbrev support to diff-patch format + diff: index-line: respect --abbrev in object's name + + A handful of Git's commands respect `--abbrev' for customizing length + of abbreviation of object names. + + For diff-family, Git supports 2 different options for 2 different + purposes, `--full-index' for showing diff-patch object's name in full, + and `--abbrev' to customize the length of object names in diff-raw and + diff-tree header lines, without any options to customise the length of + object names in diff-patch format. When working with diff-patch format, + we only have two options, either full index, or default abbrev length. + + Although, that consistent is documented, it doesn't stop users from + trying to use `--abbrev' with the hope of customising diff-patch's + objects' name's abbreviation. + + Let's resolve that inconsistency. + + To preserve backward compatibility with old script that specify both + `--full-index' and `--abbrev', always shows full object id + if `--full-index' is specified. Signed-off-by: Đoàn Trần Công Danh <congdanhqx@xxxxxxxxx> -- 2.28.0.215.g32ffa52ee0